During the concert, fans had the rare opportunity to watch the female singer perform “Atlantis Princess,” a song she had not sung in 12 years.

It’s widely known that BoA stopped singing “Atlantis Princess” after her manager, who was very dear to her, died in a car accident while she was still performing the song in 2003.

“It was a song I couldn’t easily bring to the public because of the heartache it carries,” she said. “I thought it may finally be time to sing it again for my 15th anniversary concert. Now I may be able to sing it with composure.”

Watch part of her performance in the video below:

Meanwhile, BoA debuted in 2000 and is now celebrating her 15th anniversary with her eighth full album, showing everyone who’s the queen of the industry.